62 extern void rb_free(struct perf_buffer *rb);
66 	struct perf_buffer *rb;  in rb_free_rcu()  local
68 	rb = container_of(rcu_head, struct perf_buffer, rcu_head);  in rb_free_rcu()
69 	rb_free(rb);  in rb_free_rcu()
72 static inline void rb_toggle_paused(struct perf_buffer *rb, bool pause)  in rb_toggle_paused()  argument
74 	if (!pause && rb->nr_pages)  in rb_toggle_paused()
75 		rb->paused = 0;  in rb_toggle_paused()
77 		rb->paused = 1;  in rb_toggle_paused()
83 extern int rb_alloc_aux(struct perf_buffer *rb, struct perf_event *event,
85 extern void rb_free_aux(struct perf_buffer *rb);
87 extern void ring_buffer_put(struct perf_buffer *rb);
89 static inline bool rb_has_aux(struct perf_buffer *rb)  in rb_has_aux()  argument
91 	return !!rb->aux_nr_pages;  in rb_has_aux()
98 perf_mmap_to_page(struct perf_buffer *rb, unsigned long pgoff);
107 static inline int page_order(struct perf_buffer *rb)  in page_order()  argument
109 	return rb->page_order;  in page_order()
114 static inline int page_order(struct perf_buffer *rb)  in page_order()  argument
120 static inline int data_page_nr(struct perf_buffer *rb)  in data_page_nr()  argument
122 	return rb->nr_pages << page_order(rb);  in data_page_nr()
125 static inline unsigned long perf_data_size(struct perf_buffer *rb)  in perf_data_size()  argument
127 	return rb->nr_pages << (PAGE_SHIFT + page_order(rb));  in perf_data_size()
130 static inline unsigned long perf_aux_size(struct perf_buffer *rb)  in perf_aux_size()  argument
132 	return (unsigned long)rb->aux_nr_pages << PAGE_SHIFT;  in perf_aux_size()
150 			struct perf_buffer *rb = handle->rb;	\
153 			handle->page &= rb->nr_pages - 1;		\
154 			handle->addr = rb->data_pages[handle->page];	\
155 			handle->size = PAGE_SIZE << page_order(rb);	\